A lot of interesting information here, but this one paragraph blew my mind: > Although the birds occasionally made mistakes, they more often confused calls wit

A lot of interesting information here, but this one paragraph blew my mind: > Although the birds occasionally made mistakes, they more often confused calls with similar meanings rather than similar sounds. “Their responses indicated they have a mental imagery of the meaning of their vocalisations,” Elie said. “In other words, that they understand the meaning of their call types.”